---
product_id: 322436148
title: "TECHNOLOGIES Echo Express SE IIIe Thunderbolt Three-Slot PCIe Card Expansion System"
brand: "sonnet"
price: "S$1865"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/322436148-technologies-echo-express-se-iiie-thunderbolt-three-slot-pcie-card
store_origin: SG
region: Singapore
---

# 40 Gbps transfer 3 PCIe slots 15W power delivery TECHNOLOGIES Echo Express SE IIIe Thunderbolt Three-Slot PCIe Card Expansion System

**Brand:** sonnet
**Price:** S$1865
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power Up Your Workflow!

## Quick Answers

- **What is this?** TECHNOLOGIES Echo Express SE IIIe Thunderbolt Three-Slot PCIe Card Expansion System by sonnet
- **How much does it cost?** S$1865 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/322436148-technologies-echo-express-se-iiie-thunderbolt-three-slot-pcie-card)

## Best For

- sonnet enthusiasts

## Why This Product

- Trusted sonnet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unleash Your Power:** Connect up to 3 PCIe cards simultaneously for unparalleled performance.
- • **Robust Build Quality:** Crafted from durable metal for long-lasting reliability.
- • **Daisy Chain Convenience:** Easily connect multiple devices with a single Thunderbolt 3 port.
- • **Versatile Compatibility:** Works seamlessly with both Mac and Windows systems.
- • **Lightning-Fast Transfers:** Experience data transfer rates of up to 40 Gbps with Thunderbolt 3 technology.

## Overview

The SONNET TECHNOLOGIES Echo Express SE IIIe is a cutting-edge Thunderbolt three-slot PCIe card expansion system designed for professionals who demand high performance. With the ability to connect three PCIe cards simultaneously, it offers lightning-fast data transfer rates of up to 40 Gbps and delivers up to 15W of power to connected peripherals. Its robust metal construction ensures durability, making it the perfect addition to any desktop setup.

## Description

Sonnet Echo Express SE III is a compact desktop Thunderbolt 3 to PCIe card expansion system that allows you to connect three professional PCIe cards - including video recording, audio interface, SAS or SATA HBA, 16GB or 8GB Fibre Channel, 10 Gigabit Ethernet and RAID controller - simultaneously to any Mac or Windows computer with Thunderbolt connection. ECHO Express SE III features a 40Gbps Thunderbolt 3 interface, which provides twice the PCIe bandwidth and connectivity of Thunderbolt 2, and delivers up to 2750MB/s of bandwidth, supporting 4K video capture and processing cards at high frame rates as well as 16GB FC cards and dual port 10GB cards with full performance. With the ability to handle multiple demanding, high-performance PCIe cards, support for connecting two displays at 60Hz or a display at 60Hz and support for a variety of Thunderbolt and USB devices, Thunderbolt 3 is a leap forward in every way.

## Features

- Additional PCIe power plug for a power-hungry card; "Daisy Chain" Thunderbolt 3 port delivers up to 15W of power for connected peripherals.
- Connects three PCIe cards to Thunderbolt 3 ports to any Mac or Windows computer - Use multiple powerful PCIe cards at the same time.
- Package Weight: 3.28 kilograms
- Package Dimensions: 20.6 L x 41.6 H x 23.0 W (centimeters)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Hard Disk Form Factor | 3.5 Inches |
| Compatible Devices | Desktop |
| Data Transfer Rate | 40 Gigabits Per Second |
| Maximum Number of Supported Devices | 3 |
| Hardware Platform | Laptop |
| Hardware Interface | Thunderbolt |
| Item Weight | 3 Kilograms |
| Item Dimensions L x W x H | 19.7L x 19.7W x 19.7H centimeters |
| Material | Metal |

## Product Details

- **Brand:** Sonnet
- **Motherboard compatability:** ATX
- **Case type:** Desktop
- **Recommended uses for product:** Gaming
- **Colour:** Black

## Images

![TECHNOLOGIES Echo Express SE IIIe Thunderbolt Three-Slot PCIe Card Expansion System - Image 1](https://m.media-amazon.com/images/I/51SSDOrqg4L.jpg)

## Questions & Answers

**Q: If i used this for adaptec raid controller, will performance be the same as if installed on the server motherboard?**
A: We expect the Adaptec RAID controllers to have an adequate cache to support Thunderbolt performance that is similar to motherboard performance.

**Q: Is it possible to use it with pro tools hdn card and aja lhi,  with a new macstudio?**
A: Hello Michael, The ProTools HDX card does not fit in the Echo Express SEIIIe. You would need an Echo III, which supports the full-length HDX card and works with the M1 Macs.

**Q: Will this work with older server class sas/sata raid cards - specifically lsilogic sas9260 or other cards from that generation?**
A: You would have to ask the card maker whether their driver is Thunderbolt compatible, which usually means that the driver needs to gracefully handle hot plug/unplug. Drivers that cannot handle hot plug/unplug may still work if you plug/unplug the Thunderbolt chassis from the computer only when the computer is shut down.

**Q: Will this work on a Dell PC?**
A: Thunderbolt drivers are provided by Intel, so yes, it should work

## Frequently Bought Together

- Sonnet Echo Express SEIIIe Thunderbolt 3 Edition (3-Slot PCIe Card Expansion Chassis)
- Blackmagic Design DeckLink Duo 2 4ch SDI Playback and Capture Card BMD-BDLKDUO2
- Sonnet Presto Solo 10GBASE-T Ethernet 1-Port PCIe Card [Thunderbolt Compatible]

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**Shop now:** [https://www.desertcart.sg/products/322436148-technologies-echo-express-se-iiie-thunderbolt-three-slot-pcie-card](https://www.desertcart.sg/products/322436148-technologies-echo-express-se-iiie-thunderbolt-three-slot-pcie-card)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-22*